Extractor



T, S. PATTERSON.

EXTRACYOR.

M PLICATION FILED AUG. 1. me.

Patented May 17 1921.

2 SHEETS-SHEET l.

772mm v5. Pafrsm T. S. PATTERSON.

EXTRACTOR, l APPLicATmIg FILED AUGJ, 1916.

2 SHEETS-SHEET 2.

Y plication which resulted in Patent A UNITEDv STATES PATENT OFFICE. l

THOMAS S. PATTERSON, OF ROSEMONT, PENNSYLVANIA, ASSIGNOR TO F. ROYAL HAMMETT, 0F PHILADELPHIA, PENNSYLVANIA.

EXTRACTOR.

Specification of Letters Patent. Patented May 17, 1921.

Original application iled February 26, 1912, Serial No. 679,932. Divided and thisA application tiled.v

August 7, 1916. VSerial No. 113,608.

To 1I/.ZZ whom 1f/may concern:

Be it .known that I, THOMAS S. PATTEnson; a subject of the King of Great Britain vand Ireland and the Isle of Man, (hav- 1912, under Serial No. 679,932,) Vof whichk the exhaust steam escaping/into4 the chamthe following isa specification.

- This application is a. division ofthe 1,193,600, dated August 8th,-19 16.

The object ofthe invention is to improve the extracting apparatus so that, when the.V-

basket isrotated at agiven speed, the moisture will be driven off ofthe material by incoming air, which will also carry off any steam that may accumulatefin theA casing.

In the accompanyingv drawings.: Figure l is a vertical sectional'view of my improved extracting machine; Y

Fig. -2 vis. a sectional view of the cover of the basket; f Fig. 3 is a diagrammatic view showing the flow of air through the machine when the valve atathe top is opened;

Fig. 4 isa sectional view showing one ofv the weighted valves on the bottom of thebasket opened;

Fig. 5 is a view, similar to Fig. 4, showingfthe valve closed;`

Fig. 6 *is a plan view'showing the loca-l tion of the valve; y

Fig. y isasectionalview on the line Ze-7, Fig. l, and

Fig. Sis a sectional plan view on the lme drical, casing. This casing is mounted on afname A', shaped many suitable manner.

vThetop ofthe frame in this instance forms the .bottom a vof the washing chamber;- Mounted, on the bottom portion a is thestandard B supporting the vertical shaft C which carries the basket D. The standard -By extends tota-point near the'floor Vand hasf of the said shaft. The basket has ahollow center post D of suiiicient diameter to inclose the shaft and its standard and on the end' of this center post is a socket tofreceive4 The detail' the tapered end of the shaft.

construction of the bearings and vthe means of attaching the basket to they shaft may be modiiied without departing fromV the essential features of the invention.

InV the present instance, the baskety has aseries of turbine blades d secured to the bottom thereof near the periphery,y Fig` 7'.

Thesteam pipe @is located so asto. project'f thek steam against these turbine blades and..

thus rotate the basket at theI speed desired,

ber Yin which the basket is rotated. Inv the present'instance, in thewall of the basket.

are two series of openings d? anddspaced apart as indicated, and in the bottomY of the basket are two series of openings,` f and f. Thel object of providing these openings access to the interior of the; basket at'dif'- ferent points and to open the material when the vmaterial is` beingy washed, where: the apparatus'isused as al combined washing and extracting machine.` Each opening f in the present instance is. quadrangular iny the bottom` of the., chamber inthe present instance. The water passes from thechamber formed by the casing. and` through the passages I, I and as thebasketrotates ad ditional; water, either heated or not, may bei addedtogthis ciiculatingwater, as desired. Thus, there is a complete circulationzof water in thebasket and this circulation is so regulated that the water kenters thebasket first at one pointv and then at another pointL in order to keep the material, duringA the' washing operation in motion and to expose every portionjof the sameto the cleansing action ofthe water..

The bottom openings f, f in the basket These' pasi sagesV communicate at their inlet end withy .75 Y is to-allow water underpressure togain` are closed byy valves g', Figs. 4, 5,and 6, 1

and these are pivoted at one side of the openings at g and at the other end of each valve is a weight g2. Then the basket is rotating slowly then the valves are open, as in Fig. t, and the water can flow freely through the openings, but when the speed of rotation is increased then the valves are automatically closed, as in Fig. 5, due to cut off the flow of steam into the basket or to control the flow thereof into the basket.

It will be noticed, upon referring to Fig. 6, that as the basket rotates in the direction of the arrow the pivots for the valves are at the upper side of the opening. Each valve has a stop at the back which limits the opening of the valve to the angle illustrated in Fig. 4.

When the basket is traveling slowly the valves are opened and the water is picked' up by the valves and forced into the basket, except whenthe valves are closed by the cams. The weight is suiiicient to hold the valves open against centrifugal force when the basket is rotating slowly, but when the rotation of the basket is increased for extractingV then the centrifugal force overcomes gravity, and the valves close, as in Fig. 5, as it will be noticed that the weight on the valves is farther away from the center of rotation when the valve is closed than when it is opened.

On the periphery of the basket is a series of vertical fins or blades L by which the water between the basket and the casing is kept in active motion. Vithin the basket, in the present instance, is a cage a and the side of the cage is formed of wire gauze and the bottom of the cage is also preferably formed of wire gauze so that while the cage retains the material it allows for the free flow of water through the basket. Secured to the under side of the cover D2 of the basket is a wire gauze lining 29 spaced from the cover to allow for the free flow of liquid. On the upper surface of the cover is a series of blades It. The cage is made so that it can be bodily removed from the basket when desired.

Secured to the inner wall of the casing A are inclined blades lc. These blades are set at an angle and the blades on the basket are preferably arranged vertically. The water, as it is carried around by the action of the blades h of the basket, is caused to have a downward movement due to the inclined blades c on the casing.

' Communicating with the bottom of the casing is an exhaust pipe W, which may be closed by a suitable valve. WV is an over- How pipe.

Pivoted to the casingis an arm A3 carrying a cover A2. The arm has a counterbalance L and is secured to the casing in the present instance by a clamp bolt L pivoted to the casing at Z and arranged to enter a slot in the bar; A nut on the threaded portion of the bolt engages the bar and firmly secures the cover in the closed position. Depending from the cover `A2 of the casing is a shell at, which extends down to a point near the blades it on the cover of the basket and in the cover of the casing are openings a2 closed by a rotary valve a3. allow airto enter through the casing when the water has been drawn offn so as to prevent steam from entering the basket. The air is driven by the blades on the basket toward the inner wall of the casing andV travels down the wall of theca'sing, due to the inclined blades on the casing, and as it circulates in the chamber, due to the rotation of the basket, it is directed by the wall which surrounds the outlet opening through The object of this construction is to the outlet opening and away from the chamber, carrying with it any steam that may escape from the turbine jet and which was not condensed, and any material extracted from the contents of the basket will also flow out through the opening W. i

If the machine has been used for washing and it is desired to use it as an extractor, then the circulating steam pipes areA closed, as well as the water pipes, and the i exhaust valve is opened, allowing the water to flow to waste, then the valve controlling the turbine jet is opened to the full position to allow a certain amount of steam to enter and drive the basket `at a higher speedfor the purpose of extracting the water from the material. The valves g at the bottom openings f close automatically, due to centrifugal force, as the speed of rotation of the basket increases. The valve 1.3 in the cover of the apparatus is opened to allow air to be drawn into the casing and to be driven down by the action of the blades and to carry with it any steam which may ,tend

to accumulate in the basket and, as the `outlet is still open, this airA will be carried away from the machine. As I preferably use cold air it will gradually cool the machine and the material under treatment and place and the operaeasing; a basket rotatably mounted in the casing; a steam pipe extending into the casing; an opening in the bottom of the casing; a central, contracted opening at the top of the casing; a series of radial blades on the top of the basket; and blades on the periphery 0f the basket, said blades being so arranged that, as the basket is rotated, air Will be drawn through the inlet opening to the top of the basket and Will be forced by the top blades of the basket toward the periphery and Will be drawn down between the basket and the casing and will loW through the outlet opening in the bottom of the casing, carrying with it any steam that may accumulate in the casing.

2. The combination ofa casing; a basket rotatably mounted in the casing; a steam pipe extending into the casing; an opening in the bottom of the casing; a central, contracted opening in the top of the casing and a shell leading from said opening toward the basket; radial blades on the top of the basket; blades on the periphery of the basket; and blades on the inner Wall of the casing arranged to draw the air down between the basket and the casing, the air flowing through the bottom outlet opening carrying with it any steam that may accumulate in the casing.

THOMAS s. PATTERSON. y 

